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Product code: GD/GDR Series

HCP GD/GDR Series Portable Dewatering Submersible pump

Pump Type - Submersible

Max Flow Rate M³H - 18 M³H

Max Head - 15M

Pump Materials - Aluminium

Max Temp - 40°C

Max Viscosity - 10 cst

Max Solid Passage - 7mm

Self Priming - N

Inlet/Outlet Sizes - 25mm to 50mm

Drive - AC Electric

Max Suction Lift - 0

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Select Max Flow M³H

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Select Max Head

Select Outlet Size (mm)

Select Float Switch

£453.60 (inc VAT) £378.00 (ex VAT)

This product has a delivery lead time of 1-2 Days

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DESCRIPTION

HCP GD/GDR Series Portable Dewatering Submersible pump

Flow Rate	Up to 18 m³/hr
Head (Pressure)	Up to 15 m
Inlet/Outlet Sizes	1” to 2”
Solids passage	Up to 7mm
Operating Temperature	Up to 40 °C
Drive Options	Electric Motor

The HCP GD/GDR range of portable submersible pumps are light weight and designed for site use, mainly for contractors and installers. Despite their weight and portability, they are extremely robust and a very useful tool to have on site for any dewatering applications. There are various models within this range with solids handling capability up to 7mm. The largest model within this range is capable of achieving flow rates up to 18m³/hr and heads up to 15m.

These dewatering submersible pumps are compact and narrow meaning they can fit down narrow wells and are useful in areas where water levels are shallow.

The GD version is designed for general site applications, this is constructed with an aluminium motor frame and seal bracket that is lightweight but has the added benefit of providing additional cooling for the motor when water passes through it.

The GDR version is more specialist and capable of pumping water as low as 1mm, this is an extremely useful sump pump to have where there is shallow water or flat surfaces such as roofs or anywhere that water does not naturally gather.

Common applications for the GD sump pump include; civil engineering, storm water sewers, dewatering of newly dug tunnels or ground works, general dewatering of areas containing solids, site applications requiring a mobile pump unit.

Common applications for the GDR sump pump include; dewatering of swimming pools, ponds, basements, residential buildings and commercial buildings.

Product Summary

• Robust and portable HCP GD and GDR series submersible pump

• Wide range of pump sizes, motor powers, flow rates and heads

• Suitable for waste water, storm water, rain water and dirty water

• GDR version capable of pumping water down to 1mm (Start up water level of 5mm)

• Discharge nozzle can be configured to a horizontal or vertical position depending on customer acquirements

• Fitted with rubber Urethane impeller that is resistant to corrosion and durable

• Fitted with Double silicon carbide mechanical seals to ensure an excellent seal and long operational life

• Largest model capable of handling solids up to 7mm (Check capability by model)

• Fitted with auto cut out protection to prevent motor damage if the pump becomes blocked

• Available in manual and automatic versions. Fitted with built in float switch to turn the pump on and off automatically.

• High efficiency motor

• Single phase and three phase 50hz / 60hz motors

• Epoxy resin sealed cable to protect from water ingress

• IP 68

FAQS

Can this pump run dry?

No, definitely not! submersible pumps will incur damage even after short periods of dry running. The mechanical seal requires lubrication and cooling while the pump is operating. Without the presence of fluid, the mechanical seal will overheat and crack, and this may cause the pump to leak and fluid to enter the motor. There is also the possibility that the motor will burn out as this requires cooling by the fluid during operation. Our advice is to ensure that the pump and motor are always submerged during operation. There are two main ways to ensure the pump only operates in the event of submersion. Firstly, only the operator turns the pump on and off manually when they have a clear view of the sump. Secondly, fit the pump with a float switch that will automatically turn the pump off once the fluid has dropped to a specific level in the chamber. If you think that dry running is inevitable, then please speak to us and we will try to select a more suitable pump for your application.

What do the terms manual and automatic mean?

Manual and automatic are the two main ways to describe how a submersible pump will operate. Manual means that the operator manually turns the pump on and off when required, turning the pump off and avoiding any possible damage from dry running is solely the liability of the operator. Automatic means that the pump will turn on and off automatically via a float switch or float switches. A float switch is connected to the motor that detects the fluid level in the sump, the pump is turned on when the level is high enough, and the pump is turned off when the fluid drops to an acceptable level.

How do I know what size pump is correct for my application?

A clear picture of the pump system is required to make an accurate selection. The main pieces of information required include; a description of the application, bore of pipework, the fluid, flow rate and pressure/head. With these pieces of information, a pump can be sized correctly to ensure it delivers the required flow rate and pressure and that is also operates at its best efficiency point to lower lifetime costs. Knowing if the pump is running intermittently or continuously also allows the correct motor speed to be selected. For instance, a pump running continuously 24/7 will require a 4 pole motor rather than a 2 pole motor. Running the motor slower and oversizing the pump will reduce wear of the motor and the pump, therefore lowering maintenance costs during their lifetime.

Can the motor really be submerged in water?

Yes, absolutely! In fact, submersible pump motors need to be submerged in fluid during operation for cooling and to avoid overheating. These motors have an IP rating of 68. IP stands for Ingress Protection, this is a measurement of a component's resistance to dust and fluid entering.

What size solids can this pump handle?

Please be aware that the figures displayed relate to the largest pump from this range of products, not specific models. For details on solids passage for specific models, please refer to datasheets or contact a member of our sales team.